or
1 answer
524 views
Hello,
I am working an application where I need to open the different application forms in the same main window; in other words, I have created a dashboard where it contains a several buttons, each of them should open a specific form for example, The Employees, Products, Tasks, and etc. when I click on each of the buttons, It should show the other forms but in the same RAD form.
Form.TopLevel = False property isn't working so, How can I do it?
My project is a VB.NET 2019.
Thanks in advance for your continues assistance and cooperation,
Hani Mansour
3 answers
653 views
I have a radchartview - Bar , conbined mode = stack. I wanted to set a fixed width for bar shown. Can i do that ?
Nadya | Tech Support Engineer
Telerik team
answered
on
23 Jun 2021
1 answer
1.9K+ views
Hi.
After a date is picked I want to delete it and set the value to null on the data bound item.
The NullableValue is set to null/Nothing:
Me.DateRadDateTimePicker.NullableValue = NothingThe Value property is bound to an entity's nullable date field:
Me.DateRadDateTimePicker.DataBindings.Add(New System.Windows.Forms.Binding("Value", Me.binder, "Date", True))If I select the date text and delete it, the entity still has a 01/01/0001 date value. However, the null text correctly displays in the picker.
I've even tried to manually set the null date (in three different ways!) based on the empty text but to no avail:
Dim dtp As RadDateTimePicker = ctrl
If dtp.Text = "" Then
dtp.NullableValue = Nothing
dtp.DateTimePickerElement.SetToNullValue()
dtp.Value = Nothing
End If
What am I missing?
Nadya | Tech Support Engineer
Telerik team
answered
on
23 Jun 2021
2 answers
383 views
I'm getting the following error every time I load any project in VS 2019 (16.9.4)
"Visual Studio stopped responding for 12 seconds. Disabling the extension Progress Telerik WinForms Converter 2021.2.505.1 might help."
See attached image of error.
How to resolve?
Cheers, Rob.
EDIT: for any project, WPF, UWP, etc. (not just WinForms)
Rob A.
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updated answer
on
23 Jun 2021
1 answer
109 views
hi,
i use a radgridcolumn chooser related to a radgrid with 2019 radtheme
is there any way to change the font used programatically
thx a lot...
Dess | Tech Support Engineer, Principal
Telerik team
answered
on
22 Jun 2021
9 answers
389 views
2 answers
133 views
I add datapoints to the RadChartView using CategoricalDataPoints. The values can be quite large and then I get the following error:
Value was either too large or too small for a decimal.
Then I did this test:
radChartView->Series[0]->DataPoints->Add(gcnew Telerik::Charting::CategoricalDataPoint(Decimal::ToDouble(Decimal::MaxValue), 0));
I still get the exception: Value was either too large or too small for a decimal.
What is the max value that can be set?
Nadya | Tech Support Engineer
Telerik team
answered
on
18 Jun 2021
2 answers
118 views
Hi, just a question, it is feasible to use a custom tokenizer for the autocompletebox in order to compose the text blocks?
My tokenizer currently supports a vast variety of "quoted" parts, escape sequences and separators thus would be difficult to use just separators, because if separator is , then the quoted text "Hello, World", will be considered 2 blocks instead of 1.
Best Regards
Andrea
Nadya | Tech Support Engineer
Telerik team
answered
on
18 Jun 2021
5 answers
714 views
Hi
In winforms, is it possible to have the little "eye" on the right of a RadTextbox to let the user sneak the password?
I have found https://www.telerik.com/support/kb/winforms/tools/details/showpassword-button-for-radtextbox-with-textmode-password?_ga=2.217538326.1876351049.1570721637-455345866.1542726605 which is under winforms but seems to apply to ASP.Net/Ajax.
Nadya | Tech Support Engineer
Telerik team
answered
on
18 Jun 2021
1 answer
84 views
Hi ,
I am trying to create a range bar series . In that data points should be alternating colors red and yellow only . I found one from chart grid : https://docs.telerik.com/devtools/winforms/controls/chartview/features/chart-grid but not for data points . Are there any properties to achieve this?
Code attached:
private void LoadBarChart()
{
this.radChartView1.AreaType = ChartAreaType.Cartesian;
this.radChartView1.ChartElement.AngleTransform = 90;
RangeBarSeries rangeBarSeries = new RangeBarSeries("End Time", "Start Time", "Summarization Date");
rangeBarSeries.CombineMode = ChartSeriesCombineMode.None;
this.radChartView1.ChartElement.View.Margin = new Padding(40, 40, 40, 100);
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/17/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/17/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 4, DateTime.Now.TimeOfDay.TotalMinutes + 2, "5/17/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 30, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/18/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/18/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 4, DateTime.Now.TimeOfDay.TotalMinutes + 2, "5/19/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes - 89, DateTime.Now.TimeOfDay.TotalMinutes - 100, "5/20/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/20/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes - 79, DateTime.Now.TimeOfDay.TotalMinutes - 90, "5/21/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/21/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/22/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/22/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/23/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/23/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/25/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/24/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 14, DateTime.Now.TimeOfDay.TotalMinutes + 10, "5/26/2021"));
rangeBarSeries.DataPoints.Add(new RangeDataPoint(DateTime.Now.TimeOfDay.TotalMinutes + 7, DateTime.Now.TimeOfDay.TotalMinutes + 5, "5/26/2021"));
CategoricalAxis horizontalAxis = new CategoricalAxis();
// horizontalAxis.Title = "Summarization Days";
horizontalAxis.ClipLabels = false;
horizontalAxis.LabelRotationAngle = -90;
horizontalAxis.LabelFitMode = AxisLabelFitMode.Rotate;
horizontalAxis.BackColor = Color.Red;
horizontalAxis.PlotMode = AxisPlotMode.BetweenTicks;
horizontalAxis.LabelFormatProvider = new MyFormatProviderX();
rangeBarSeries.HorizontalAxis = horizontalAxis;
ChartTooltipController tooltipController = new ChartTooltipController();
tooltipController.DataPointTooltipTextNeeded += tooltipController_DataPointTooltipTextNeeded;
this.radChartView1.Controllers.Add(tooltipController);
// rangeBarSeries.ShowLabels = true;
this.radChartView1.Series.Add(rangeBarSeries);
radChartView1.ShowToolTip = true;
rangeBarSeries.CombineMode = ChartSeriesCombineMode.None;
rangeBarSeries.VerticalAxis.LabelFormatProvider = new MyFormatProvider();
rangeBarSeries.VerticalAxis.Title = "Time of the day";
rangeBarSeries.VerticalAxis.ClipLabels = false;
rangeBarSeries.VerticalAxis.LabelRotationAngle = -90;
rangeBarSeries.VerticalAxis.LabelFitMode = AxisLabelFitMode.Rotate;
LinearAxis verticalAxis = radChartView1.Axes.Get<LinearAxis>(1);
verticalAxis.Minimum = 0; //Minutes 0:00
verticalAxis.Maximum = 1380; //Minutes 23:00
verticalAxis.MajorStep = 60; //60 minutes in an hour
CartesianArea area = this.radChartView1.GetArea<CartesianArea>();
area.ShowGrid = true;
CartesianGrid grid = area.GetGrid<CartesianGrid>();
grid.DrawVerticalStripes = true;
grid.DrawHorizontalStripes = false;
}
private void tooltipController_DataPointTooltipTextNeeded(object sender, DataPointTooltipTextNeededEventArgs e)
{
RangeDataPoint dp = e.DataPoint as RangeDataPoint;
if (dp != null)
{
e.Text = dp.High + " " + dp.Low;
}
}
}
}
public class MyFormatProvider : IFormatProvider, ICustomFormatter
{
public object GetFormat(Type formatType)
{
return this;
}
public string Format(string format, object arg, IFormatProvider formatProvider)
{
int totalminutes = Convert.ToInt32(arg);
TimeSpan timeSpan = TimeSpan.FromMinutes(totalminutes);
return timeSpan.ToString(@"hh\:mm");
}
}
Nadya | Tech Support Engineer
Telerik team
answered
on
16 Jun 2021
